‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, Arizona: 43.
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 338-340.
Tenney, J.B. (1927-1929) History of Mining in Arizona, Special Collection, University of Arizona Library & Arizona Bureau of Mines Library: 293-300.
Marshall, R.R. & O. Joensuu (1961), Crystal habit and trace element content of some galenas, Economic Geology: 56: 758-771.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 77 (Table 4).
Lehman, Norman E. (1978) The Geology and Pyrometasomatic Ore Deposits of the Washington Camp-Duquesne District, Santa Cruz County, Arizona. PhD dissertation, University of Arizona: 126-143.
Blair, Gerry (1992), The Rockhound's Guide to Arizona: Helena, MT, Falcon Press.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 152, 229, 347.
U.S. Bureau of Mines Coronado National Forest Study.
U.S. Bureau of Mines field reports ZN1.
U.S. Bureau of Land Management Mining District Sheet 727.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology file data.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10037099, MRDS ID #M030397.
A former small surface and underground Zn-Pb-Cu-Ag-Au-Quartz mine located in the center of sec. 3, T.24S., R.16E. (protracted), in the southwestern part of the camp, nearly ½ mile south of the Pride of the West Mine, adjacent on the SW to the Dudley Mine, and 2/3 mile west of Duquesne, on the south fork of Duquesne Gulch, 2.5 miles N of Mexico, 3/4 mile SW of Washington Camp, at an elevation of about 5,800 feet. Located in 1880 by Henry Holland, who shortly thereafter sold it to Dr. Luttrell & others, from California. Owned at times, or in part, by the Holland Smelting & Mining Co.; B. Coughlin (1891); F.L. Bartlett, of Denver (1896- ); the Duquesne Mining & Reduction Co. (1905- ); Callahan Zinc Lead Co. (1940-1944); Nash Mines (1951-1957); E.W. McFarland (1952-1957); and, Byrd (1945-1949); Carl Sandberg & Fred Williams (1964); Luttrell and Partners; and, A.B. Elder. Operated by the Simplot Mining Co. (1970). Owned by Rosario Exploration Co. (1973).
Mineralization is sulfides oxidized to iron oxides and carbonates with manganese oxide near the surface, in massive, irregular, lens-like orebodies with a gangue of silicated limestone, quartz, and calcium silicates, in pyrometasomatized Permian Naco Group limestone. Mineralization is along a garnetiferous zone close to Laramide granodiorite. The ore zones dip 45-65W between surface and 100 feet, then abruptly become nearly vertical between 100-200 feet, when the sulfide zone thins. Molybdenite appears to replace chalcopyrite & galena in isolated occurrences. Ore control was the contact of the Epitaph Dolomite with the Scherrer Quartzite; and bedding planes.
The mine is in the crystalline limestone near the contact of the quartz monzonite on the west and is probably on the southerly extension of the same general mineralized zone as the Pride of the West. The deposit occupies a zone about 50 feet in width, which dips about 60ºW., conformably with the limestone. It has a fairly regular footwall of crystalline limestone on the east, from which it is separated by about 2 feet of gougelike material containing a mineral that is mostly iron. The deposit and enclosing limestone are cut by a jointing or coarse sheeting that dips 25ºE. Sulphides are cut off by post-ore faulting.
The ore occurs chiefly in irregular, crudely tabular bodies, mostly dipping to the west. The lead ores, which contain most of the silver, occur mainly on the footwall side of the deposit; toward the hanging wall side the ores contain principally zinc with a little copper.
Mineral deposits of the Washington-Duquesne area occupy a limestone-sediment belt (2.5 miles long by 1.25 miles wide) surrounded by igneous rocks which also form detached masses and dikes within the belt.
Workings include a nearly 100 foot deep shaft (1881) and open cut operations. There are 4 inclined shafts, 100 by 40 foot open cut in 1915. Later it had 4 inclined shafts, opening it to a depth of 200 feet, which decend from the bottom of an open cut 100 feet long and 40 feet wide in the east side of the mineralized zone. Worked extensively prior to 1900 for high-grade, oxidized Pb-Ag ore. Total production would be some 80,000 tons of ore averaging about 18% Zn, 10% Pb, 2% Cu, 12 oz. Ag/T and minor Au.
|
|
|
Map Reference: 31°22'14"N , 110°41'42"W
Important Disclaimer: This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Switch between Map and Globe
|
